Resultados de la búsqueda
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CPUEs and body length of Antarctic krill during the 1999/2000 season in Area 48
Abstract: Four Japanese krill fishing vessels operated in Area 48 during the 1999/2000 split year ... . In Subarea 48.1, the operation started in December and lasted until June. In Subarea 48.2, operation ... . Trawling positions, CPUEs and body length of Antarctic krill during the period is described. The krill ... length frequency distribution was further compared with those obtained by the CCAMLR international ...
Meeting Document : WG-EMM-01/36 : Autor(es): S. Kawaguchi and M. Naganobu (Japan)
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Do krill and salp compete? Contrary evidence from the krill fisheries
feeding on phytoplankton were analysed using logbook data from Japanese krill trawlers operating near the ... Antarctic Peninsula. Interannual and seasonal variability of the timing, duration and intensity of salp ... blooms and the presence of green krill were analysed. No relationship between salp density and the ... proportion of green krill in the catches was evident when both salps and krill were taken together. In the ...
Meeting Document : WS-AREA 48-98/4 Rev. 1 : Autor(es): S. Kawaguchi (Japan), W.K. de la Mare (Australia), T. Ichii and M. Naganobu (Japan)
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Pilot study using electronic satellite tags to determine movements of Antarctic toothfish in the Ross Sea region
along the Ross Sea continental slope in January 2012. They will be programmed to pop-off the fish, float ... to the surface, and transmit in December 2012. The purpose of this paper is to provide an ... announcement for members to distribute to vessels, crew and observers given the chance that these fish may be ... encountered in the fishery. The announcement details what to do if a satellite tagged fish is encountered, and ...
Meeting Document : WG-FSA-11/49 : Autor(es): S. Parker (New Zealand)
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Characteristics of water flows in areas for Antarctic krill concentrations near the South Shetland Islands
Abstract: Water flows in harvestable areas for Antarctic krill (Euphausia superba) on the ... continental slope and shelf of the South Shetland Islands were examined based on drifting buoy data ... . Convergent complex eddies were observed in harvestable areas on the shelf, while shear current was observed ... in those on the slope. Large-scale movements of the buoys suggest krill flux from the South Shetlands ...
Meeting Document : WG-EMM-95/49 : Autor(es): Naganobu, M., Ichii, T.
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Definition of the problem of estimating fish abundance over an area from acoustic line transect measurements of density
Abstract: The problem of acoustic abundance estimation is briefly reviewed. Under proper ... density consequently reflect biological variations, or inhomogeneity in spatial distribution. The ... is defined. Related problems of estimating the variance of the abundance estimate and of mapping the ... spatial distribution are also defined. A partial list of candidate methods for solving the several ...
Meeting Document : WG-KRILL-91/08 : Autor(es): K.G. Foote and G. Stefánsson (Norway)
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Investigations on tagging data in the Kerguelen Islands Patagonian toothfish fishery (division 58.5.1)
Abstract: In 2014, FSA-14-36r1 presented a new assessment of Patagonian toothfish in the French ... EEZ. A singularity in the tagging fits was observed by the working group. A lower number of recaptures ... in the first year compare to the second year was noted (figure1). This paper is an overview of ... tagging data in Kerguelen area and the impacts on the Casal assessment. Author(s): R. Sinegre and G ...
Meeting Document : WG-SAM-15/43 : Autor(es): R. Sinegre and G. Duhamel (France)
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Research program on resource potential and life cycle of Dissostichus species from the Subarea 88.2 A in 2016–2019
fishing seasons 2016-2019. The present program aims to recapture tagged fishes released during the ... implementation of the previous research program took place in 2010-2012 fishing seasons and investigate resource ... potential and life cycle of Dissostichus species within the eastern part of the Ross Sea over shelf and ... continental slope within the Subarea 88.2 A. This document proposes multinational research in Subarea 88.2 A ...
Meeting Document : WG-SAM-16/27 : Autor(es): Delegation of the Russian Federation
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Research program on resource potential and life cycle of Dissostichus species from the Subarea 88.2 A in 2016-2019
fishing seasons 2016-2019. The present program aims to recapture tagged fishes released during the ... implementation of the previous research program took place in 2010-2012 fishing seasons and investigate resource ... potential and life cycle of Dissostichus species within the eastern part of the Ross Sea over shelf and ... continental slope within the Subarea 88.2 A. This document proposes multinational research in Subarea 88.2 A ...
Meeting Document : WG-FSA-16/16 Rev. 1 : Autor(es): Delegation of the Russian Federation
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A preliminary assessment of mackerel icefish (Champsocephalus gunnari) in Division 58.5.2, based on results from the 2016 random stratified trawl survey
Abstract: The annual Random Stratified Trawl Survey was undertaken in Division 58.5.2 in the ... icefish population structure, abundance and yield for the area of Division 58.5.2 to the west of 79 o 20 ... the population. These projections indicate that catches of 561 t in the 2016/17 season and 402 t in ... the 2017/18 season satisfy the CCAMLR decision rules. Author(s): D. Maschette and D. Welsford Title ...
Meeting Document : WG-FSA-16/26 : Autor(es): D. Maschette and D. Welsford
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Updated assessment of the risks of status quo krill fishing and proposed revisions to Conservation Measure 51-07
Abstract: We used an ecosystem model to assess the risks of 1) the most recent distribution of ... krill catches in Subareas 48.1-48.3 and 2) current proposals to increase the catch limit in Subarea 48.1 ... . Our results show that the concentration of fishing effort since 2009 increases the risks that predator ... exacerbated by increased catches in Subarea 48.1. We briefly discuss the implications of our results and ...
Meeting Document : SC-CAMLR-XXXV/BG/36 : Autor(es): Delegation of the USA